Now, your concern about the xqemu project is greatly appreciated, however it's important to remember that JayFox and espes are two busy people. Both of them last I checked are busy with University classes and what not, and espes has a job also. So lately they've had their hands full. Every once and a while progress on an emu will slow down due to IRL taking priority, that doesn't mean that it's dead because you haven't heard anything in a while or haven't seen any updates on github in a few months. Trust me, it's not going anywhere; *Madara Uchiha voice* settle down!
So, for all of you SEGA fans out there, please enjoy this video of House of the Dead 3. Runs quite nicely, no?
The speed of the video was increased by 8x roughly. So considering how problematic this game was to emulate on Cxbx and xqemu at first, I'd say that xqemu is doing just fine. The compatibility is pretty good in many cases, just a few things to sort out here and there.